Convergent validity of the HOOS (Spearman’s rank correlation coefficient).

Table 4: Convergent validity of the HOOS (Spearman’s rank correlation coefficient).

	WOMAC
	Pain	Stiffness	Physical Function
First Assessment
HOOS Symptoms	-0.54^**	-0.53^**	-0.52^**
HOOS Pain	-0.48^**	-0.46^**	-0.45^**
HOOS Activity of daily living	-0.41^**	-0.42^**	-0.42^**
HOOS Sport and recreation	-0.38^**	-0.40^**	-0.40^**
HOOS Quality of life	-0.51^**	-0.51^**	-0.52^**
Second Assessment
HOOS Symptoms	-0.45^**	-0.48^**	-0.52^**
HOOS Pain	-0.44^**	-0.49^**	-0.50^**
HOOS Activity of daily living	-0.34^**	-0.39^**	-0.41^**
HOOS Sport and recreation	-0.39^**	-0.42^**	-0.43^**
HOOS Quality of life	-0.45^**	-0.47^**	-0.47^**

Note: **Correlation is significant at the 0.01 level (2-tailed).